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As of early 2025, Chemours Capstone™ has been discontinued, and ChemPoint is committed to helping customers find alternatives. We offer Momentive CoatOSil™ and Silquest™, silicone-based surface-modifying additives, and ICT Thetawet™, Thetaguard™, and Thetapel™ fluorosurfactants and fluoropolymers. Contact us, and one of our technical experts will assist you in finding the closest option for your formulation.
Capstone™ FS-30 is an non-ionic, aqueous, fluorosurfactant. It is used as a wetting and leveling agent in paints, inks, and coatings.
Capstone™ FS-30 is a water soluble, nonionic fluorosurfactant that is able to modify surface energies at very low concentrations. It is an APEO and VOC free and compatible with resins and additives of any ionic class. Capstone™ FS-30 is stable in acidic, alkaline, brine, and hard water environments. The ability to drastically reduce surface tension combined with excellent stability in various conditions make Capstone™ FS-30 an ideal wetting an leveling agent in most water-based formulations. Capstone™ FS-30 is available commercially as an aqueous solution containing 25% actives in both drums and pails.
Note: All samples and purchases of Capstone for new projects and applications must first be evaluated for approval by ChemPoint and Chemours.
Appearance:
Light yellow to amber liquid
pH: 7–8.5
Specific Gravity: 1.1 g/mL
Stability: Freeze-thaw stable. Stable in brine and aggressive media.
Composition: 25% solids
Flash Point: Nonflammable
Primary Chemistry:
Ethoxylated Fluorosurfactant
Capstone™ FS-30 is a powerful wetting and leveling additive in aqueous coating, ink, and paint formulations. It can be added to water based paint and ink formulations during the grind or let-down phase. When added to the grind phase Capstone™ FS-30 is an incredibly effective pigment wetting agent and eliminates the need for other surfactants and defoamers. When added during let-down It will help to reduce surface defects like orange peel, pinholes, and cratering. The effectiveness of Capstone™ FS-30 at a low dosage rate (typically 0.01-0.05% actives) makes Capstone™ FS-30 the ideal wetting agent for manufacturers who are looking to reduce formulation cost and complexity.
Capstone™ FS-30 can also be used in cleaning solutions at 0.01-0.1% actives to improve the wetting of difficult soils and increase cleanability.
In water-based floor care products Capstone™ FS-30 is used to improve surface wetting, improve re-wet characteristics, and reduce cratering. It it is recommended to be added to floor care formulations at 0.01-0.05% actives by weight.
In plating baths Capstone™ FS-30 can be added to reduce drag-out.
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